CA2059488C - Method for cleaning or extracting hydrocarbon based substances - Google Patents
Method for cleaning or extracting hydrocarbon based substancesInfo
- Publication number
- CA2059488C CA2059488C CA002059488A CA2059488A CA2059488C CA 2059488 C CA2059488 C CA 2059488C CA 002059488 A CA002059488 A CA 002059488A CA 2059488 A CA2059488 A CA 2059488A CA 2059488 C CA2059488 C CA 2059488C
- Authority
- CA
- Canada
- Prior art keywords
- cleaning
- hydrocarbon based
- hydrogen peroxide
- alkali metal
- metal hydroxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Detergent Compositions (AREA)
Abstract
A method for cleaning hydrocarbon based grease from oven surfaces or extracting hydrocarbons from soil, sand clay and cloth uses a composition comprising an aqueous solution of hydrogen peroxide and an alkali metal hydroxide.
Description
METHOD FOR CLEANING OR EXTRACTING
HYDROCARBON BASED SUBSTANCES
This invention relates to a novel use of a composition containing a solvent which S is useful for cleaning ovens and for the extraction of hydrocarbons from soil, sand, clay and cloth, and does not emit harmful vapours or fumes.
We have now found, and herein lies the invention, that an aqueous solution of hydrogen peroxide and an alkali metal hydroxide, particularly potassium hydroxide, sprayed on to the surface of a household or commercial oven is advantageous in that it will effectively disrupt the cohesive and adhesive forces of the molecules of the hydrocarbon based grease on the oven surface. It may also be useful for the extraction of hydrocarbons, for example oil or oil residues, from soil, sand, clay and cloth.
Thus in accordance with the present invention, there is provided a method for cleaning or extracting a hydrocarbon based substance on a substrate comprising applying to said substance an aqueous solution comprised of hydrogen peroxide and an alkali metal hydroxide. The alkali metal hydroxide is potassium hydroxide. A preferred aqueous solution comprises 250 to 350 parts by weight of water, 70 to 80 parts by weight of 35%
hydrogen peroxide and 5 to 10 parts by weight of potassium hydroxide.
The hydrogen peroxide used in the composition of the invention is preferably a pure grade of hydrogen peroxide such as that used in the food industry, for example, a 35% food grade hydrogen peroxide. It is desirable that the hydrogen peroxide be of such a quality that it is free from undesirable and potentially harmful chemical impurities that might be given off during the cleaning reaction.
Likewise, the water used to prepare the composition is preferably pure water in the sense that it is water free from undesirable chemical impurities such as certain minerals and salts which might interfere with the cleaning reaction.
Likewise, the alkali metal hydroxide used to prepare the composition should have a minimum of chemical impurities, for example, 85% purity ACS reagent grade potassium hydroxide.
It is to be understood by one skilled in the art that the relative proportions of hydrogen peroxide, water and alkali metal hydroxide may be varied depending on how long the composition is to be left on the oven to be cleaned.
The invention is illustrated by, but not limited to, the following example.
295 ml of pure distilled water, 75 ml of 35% food grade hydrogen peroxide and g of 85% purity ACS reagent grade potassium hydroxide are combined and sprayed on to the surface of the oven to be cleaned. The composition is allowed to remain on the oven surface for 8 to 10 hours and then washed away with water. The composition obtained is useful as a cleaner to remove hydrocarbon based grease from the oven.
A
HYDROCARBON BASED SUBSTANCES
This invention relates to a novel use of a composition containing a solvent which S is useful for cleaning ovens and for the extraction of hydrocarbons from soil, sand, clay and cloth, and does not emit harmful vapours or fumes.
We have now found, and herein lies the invention, that an aqueous solution of hydrogen peroxide and an alkali metal hydroxide, particularly potassium hydroxide, sprayed on to the surface of a household or commercial oven is advantageous in that it will effectively disrupt the cohesive and adhesive forces of the molecules of the hydrocarbon based grease on the oven surface. It may also be useful for the extraction of hydrocarbons, for example oil or oil residues, from soil, sand, clay and cloth.
Thus in accordance with the present invention, there is provided a method for cleaning or extracting a hydrocarbon based substance on a substrate comprising applying to said substance an aqueous solution comprised of hydrogen peroxide and an alkali metal hydroxide. The alkali metal hydroxide is potassium hydroxide. A preferred aqueous solution comprises 250 to 350 parts by weight of water, 70 to 80 parts by weight of 35%
hydrogen peroxide and 5 to 10 parts by weight of potassium hydroxide.
The hydrogen peroxide used in the composition of the invention is preferably a pure grade of hydrogen peroxide such as that used in the food industry, for example, a 35% food grade hydrogen peroxide. It is desirable that the hydrogen peroxide be of such a quality that it is free from undesirable and potentially harmful chemical impurities that might be given off during the cleaning reaction.
Likewise, the water used to prepare the composition is preferably pure water in the sense that it is water free from undesirable chemical impurities such as certain minerals and salts which might interfere with the cleaning reaction.
Likewise, the alkali metal hydroxide used to prepare the composition should have a minimum of chemical impurities, for example, 85% purity ACS reagent grade potassium hydroxide.
It is to be understood by one skilled in the art that the relative proportions of hydrogen peroxide, water and alkali metal hydroxide may be varied depending on how long the composition is to be left on the oven to be cleaned.
The invention is illustrated by, but not limited to, the following example.
295 ml of pure distilled water, 75 ml of 35% food grade hydrogen peroxide and g of 85% purity ACS reagent grade potassium hydroxide are combined and sprayed on to the surface of the oven to be cleaned. The composition is allowed to remain on the oven surface for 8 to 10 hours and then washed away with water. The composition obtained is useful as a cleaner to remove hydrocarbon based grease from the oven.
A
Claims (5)
1. A method for cleaning or extracting a hydrocarbon based substance on a substrate comprising applying to said substance an aqueous solution comprised of hydrogen peroxide and an alkali metal hydroxide.
2. The method according to claim 1 wherein the alkali metal hydroxide is potassium hydroxide.
3. The method according to claim 1 or 2 for cleaning hydrocarbon based grease from oven surfaces.
4. The method according to claim 1 or 2 for extracting hydrocarbons from soil, sand, clay or cloth.
5. The method according to any one of claims 1 to 4 wherein said aqueous solution comprises 250 to 350 parts by weight of water, 70 to 80 parts by weight of 35%
hydrogen peroxide and 5 to 10 parts by weight of potassium hydroxide.
hydrogen peroxide and 5 to 10 parts by weight of potassium hydroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002059488A CA2059488C (en) | 1992-01-16 | 1992-01-16 | Method for cleaning or extracting hydrocarbon based substances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002059488A CA2059488C (en) | 1992-01-16 | 1992-01-16 | Method for cleaning or extracting hydrocarbon based substances |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2059488A1 CA2059488A1 (en) | 1993-07-17 |
| CA2059488C true CA2059488C (en) | 1999-08-24 |
Family
ID=4149102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002059488A Expired - Lifetime CA2059488C (en) | 1992-01-16 | 1992-01-16 | Method for cleaning or extracting hydrocarbon based substances |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2059488C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106794494B (en) | 2014-05-04 | 2021-07-02 | 耶路撒冷希伯来大学伊萨姆研究开发有限公司 | Remediation of contaminated soil |
-
1992
- 1992-01-16 CA CA002059488A patent/CA2059488C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2059488A1 (en) | 1993-07-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry | ||
| MKEX | Expiry |
Effective date: 20120116 |